Best tubes for training and everyday use

Familiarity:
I've put it through the wringer

I don't race, but I do commute and ride on the weekends. These are hands down the best tubes I've used in my road bike and single speed. There are only a few different manufacturers of inner tubes, Kenda provides tubes to a ton of different brands, including Specialized, Trek, REI (Novara), BELL, and others. There are a few other popular brands, but Continentals seem to be much better than anything else out there, they hold air longer, resist puncturing better, and just feel nicer out of the box. Worth a few extra bucks to me, plus the yellow valve caps are tight.